it is true
Nebula II is Joachim Shotter and Richard McCormack.
The Butterfly Nebula or (Twin Jet, M2-9) has a radius of about 0.7 light years
Depending on your version of Google Earth. Go View --> Switch to sky --> search for Crab Nebula or M1
Gas and dust in a nebula is disturbed by an outside force
A nebula.
When the pressure and temperature of a nebula increase, it can lead to the formation of protostars. As gravity causes the nebula to contract and heat up, eventually nuclear fusion can begin at the core of the protostar, leading to the formation of a new star.
After a nebula contracts and its temperature increases to 10 million K, it can start nuclear fusion in its core, becoming a protostar. The increase in temperature and pressure triggers the fusion of hydrogen atoms into helium atoms, releasing energy in the form of light and heat. The protostar will continue to evolve and eventually become a full-fledged star.
The two main factors that cause a nebula to develop into a star are gravity and heat. Gravity pulls the gas and dust in the nebula together, causing it to collapse under its own gravity. As the collapse continues, the temperature and pressure in the core of the collapsing nebula increase, eventually reaching a point where nuclear fusion ignites, and a star is born.
A supernova occurs.
It is called a stellar nebula.
A supernova occurs.
A supernova occurs.
A nebula, in general, is not particularly hot. They are usually visible due to embedded stars.
A nebula, in general, is not particularly hot. They are usually visible due to embedded stars.
Gravity is responsible for pulling matter together in a nebula, leading to the formation of stars. As the matter in a nebula collapses under gravity, it increases in density and temperature, which in turn leads to an increase in pressure. The balance between gravity pulling matter inward and pressure pushing outward ultimately determines the fate of the nebula.
Nebula gases begin to burn primarily due to two factors: the increase in temperature and pressure that occurs as the gas clouds collapse under their own gravity. As the gas contracts, it heats up, and once the temperature reaches a critical point, nuclear fusion reactions can ignite, leading to the formation of stars. Additionally, the presence of sufficient mass is necessary to create the conditions for these processes to occur.
It depends on how much gravitational force draws dust and molecules toward it. The more force the bigger. :D